[Kitchen Witch]

Leftover spaghetti sauce can be frozen and used as a pizza sauce for your next pizza. Ditto with leftover marinara, etc.

Not enough for a pizza? Don't waste it. You can still make "pizza" using anything from a bagel, English muffin, rolls, bread, tortillas - you name it. Serve with a salad for a quick lunch.

Ditto with leftover sloppy joe mix, taco meats, etc.

Leftover meatballs or hamburgers can always be chopped up as well and used.